<?php
/**
* Create meta boxes for editing pages in WordPress
* Compatible with custom post types in WordPress 3.0
*
* Support input types: text, textarea, checkbox, radio box, select, file, image
*
* @author: Rilwis
* @url: http://www.deluxeblogtips.com/2010/04/how-to-create-meta-box-wordpress-post.html
* @version: 2.4.1
*
* Changelog:
* - 2.4.1: fix bug of not receiving value for select box
* - 2.4: (image upload features are credit to Kai http://twitter.com/ungestaltbar)
* + change image upload using meta fields to using default WP gallery
* + add delete button for images, using ajax
* + allow to upload multiple images
* + add validation for meta fields
* - 2.3: add wysiwyg editor type, improve check for upload fields, change context and priority attributes to optional
* - 2.2: add enctype to post form (fix upload bug), thanks to http://www.hashbangcode.com/blog/add-enctype-wordpress-post-and-page-forms-471.html
* - 2.1: add file upload, image upload support
* - 2.0: oop code, support multiple post types, multiple meta boxes
* - 1.0: procedural code
*/
//Usage: for more information, please visit: http://www.deluxeblogtips.com/2010/04/how-to-create-meta-box-wordpress-post.html
// Register meta boxes
$prefix = 'dbt_';
$meta_boxes = array();
// first meta box
$meta_boxes[] = array(
'id' => 'my-meta-box-1',
'title' => 'Match details',
'pages' => array('post', 'matches'), // multiple post types, accept custom post types
'context' => 'normal', // normal, advanced, side (optional)
'priority' => 'high', // high, low (optional)
'fields' => array(
array(
'name' => 'Enable match details', // check box
'id' => $prefix . 'checkbox',
'type' => 'checkbox'
),
array(
'name' => 'Team 1',
'desc' => 'vs',
'id' => $prefix . 'team1',
'type' => 'text', // text box
'std' => '',
),
array(
'name' => 'Team 2',
'desc' => '',
'id' => $prefix . 'team2',
'type' => 'text', // text box
'std' => '',
),
array(
'name' => 'Match type',
'id' => $prefix . 'select',
'type' => 'select', // select box
'options' => array( // array of name, value pairs for select box
array('name' => 'Single Elimation', 'value' => 'bo1'),
array('name' => 'Best of 3', 'value' => 'bo3'),
array('name' => 'Best of 5', 'value' => 'bo5')
)
),
)
);
// second meta box
$meta_boxes[] = array(
'id' => 'my-meta-box-2',
'title' => 'Champion picks and bans',
'pages' => array('post', 'matches'), // custom post types, since WordPress 3.0
'context' => 'normal',
'priority' => 'high',
'fields' => array(
array(
'name' => 'Enable champion picks and bans', // check box
'id' => $prefix . 'checkboxpickbans',
'type' => 'checkbox'
),
array(
'name' => 'Team 1 Champion Picks',
'id' => $prefix . 'select1',
'type' => 'champselect', // select box
'options' => array( // array of name, value pairs for select box
array('name' => 'Alistar', 'value' => 'alistar'),
array('name' => 'Ahri', 'value' => 'ahri'),
array('name' => 'Sona', 'value' => 'sona'),
array('name' => 'Annie', 'value' => 'annie'),
array('name' => 'Urgot', 'value' => 'urgot'),
array('name' => 'Wukong', 'value' => 'wukong')
)
),
array(
'name' => 'Team 2 Champion Picks',
'id' => $prefix . 'select2',
'type' => 'champselect', // select box
'options' => array( // array of name, value pairs for select box
array('name' => 'Alistar', 'value' => 'alistar'),
array('name' => 'Ahri', 'value' => 'ahri'),
array('name' => 'Sona', 'value' => 'sona'),
array('name' => 'Annie', 'value' => 'annie'),
array('name' => 'Urgot', 'value' => 'urgot'),
array('name' => 'Wukong', 'value' => 'wukong')
)
),
array(
'name' => 'Team 1 Champion Bans',
'id' => $prefix . 'select3',
'type' => 'champbans', // select box
'options' => array( // array of name, value pairs for select box
array('name' => 'Alistar', 'value' => 'alistar'),
array('name' => 'Ahri', 'value' => 'ahri'),
array('name' => 'Sona', 'value' => 'sona'),
array('name' => 'Annie', 'value' => 'annie'),
array('name' => 'Urgot', 'value' => 'urgot'),
array('name' => 'Wukong', 'value' => 'wukong')
)
),
array(
'name' => 'Team 2 Champion Bans',
'id' => $prefix . 'select4',
'type' => 'champbans', // select box
'options' => array( // array of name, value pairs for select box
array('name' => 'Alistar', 'value' => 'alistar'),
array('name' => 'Ahri', 'value' => 'ahri'),
array('name' => 'Sona', 'value' => 'sona'),
array('name' => 'Annie', 'value' => 'annie'),
array('name' => 'Urgot', 'value' => 'urgot'),
array('name' => 'Wukong', 'value' => 'wukong')
)
),
)
);
$meta_boxes[] = array(
'id' => 'my-meta-box-3',
'title' => 'VOD',
'pages' => array('post', 'matches'), // multiple post types, accept custom post types
'context' => 'normal', // normal, advanced, side (optional)
'priority' => 'high', // high, low (optional)
'fields' => array(
array(
'name' => 'Enable VOD', // check box
'id' => $prefix . 'checkboxvod',
'type' => 'checkbox'
),
array(
'name' => 'VOD Embed Code',
'desc' => 'Link to the matches VOD from own3d, Youtube, Twitch etc',
'id' => $prefix . 'textareavod',
'type' => 'textarea', // text area
'std' => ''
),
)
);
foreach ($meta_boxes as $meta_box) {
$my_box = new RW_Meta_Box($meta_box);
}
// Validate value of meta fields
// Define ALL validation methods inside this class
// and use the names of these methods in the definition of meta boxes (key 'validate_func' of each field)
class RW_Meta_Box_Validate {
function check_text($text) {
if ($text != 'hello') {
return false;
}
return true;
}
}
/**
* AJAX delete images on the fly. This script is a slightly altered version of a function used by the Plugin "Verve Meta Boxes"
* http://wordpress.org/extend/plugins/verve-meta-boxes/
*
*/
add_action('wp_ajax_unlink_file', 'unlink_file_callback');
function unlink_file_callback() {
global $wpdb;
if ($_POST['data']) {
$data = explode('-', $_POST['data']);
$att_id = $data[0];
$post_id = $data[1];
wp_delete_attachment($att_id);
}
}
/**
* Create meta boxes
*/
class RW_Meta_Box {
protected $_meta_box;
// create meta box based on given data
function __construct($meta_box) {
if (!is_admin()) return;
$this->_meta_box = $meta_box;
// fix upload bug: http://www.hashbangcode.com/blog/add-enctype-wordpress-post-and-page-forms-471.html
$upload = false;
foreach ($meta_box['fields'] as $field) {
if ($field['type'] == 'file' || $field['type'] == 'image') {
$upload = true;
break;
}
}
$current_page = substr(strrchr($_SERVER['PHP_SELF'], '/'), 1, -4);
if ($upload && ($current_page == 'page' || $current_page == 'page-new' || $current_page == 'post' || $current_page == 'post-new')) {
add_action('admin_head', array(&$this, 'add_post_enctype'));
add_action('admin_head', array(&$this, 'add_unlink_script'));
add_action('admin_head', array(&$this, 'add_clone_script'));
}
add_action('admin_menu', array(&$this, 'add'));
add_action('save_post', array(&$this, 'save'));
}
function add_post_enctype() {
echo '
<script type="text/javascript">
jQuery(document).ready(function(){
jQuery("#post").attr("enctype", "multipart/form-data");
jQuery("#post").attr("encoding", "multipart/form-data");
});
</script>';
}
function add_unlink_script(){
echo '
<script type="text/javascript">
jQuery(document).ready(function($){
$("a.deletefile").click(function () {
var parent = jQuery(this).parent(),
data = jQuery(this).attr("rel"),
_wpnonce = $("input[name=\'_wpnonce\']").val();
$.post(
ajaxurl,
{action: \'unlink_file\', _wpnonce: _wpnonce, data: data},
function(response){
//$("#info").html(response).fadeOut(3000);
//alert(data.post);
},
"json"
);
parent.fadeOut("slow");
return false;
});
});
</script>';
}
function add_clone_script() {
echo '
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery(".add").click(function() {
jQuery("#newimages p:first-child").clone().insertAfter("#newimages p:last").show();
return false;
});
jQuery(".remove").click(function() {
jQuery(this).parent().remove();
});
});
</script>';
}
/// Add meta box for multiple post types
function add() {
$this->_meta_box['context'] = empty($this->_meta_box['context']) ? 'normal' : $this->_meta_box['context'];
$this->_meta_box['priority'] = empty($this->_meta_box['priority']) ? 'high' : $this->_meta_box['priority'];
foreach ($this->_meta_box['pages'] as $page) {
add_meta_box($this->_meta_box['id'], $this->_meta_box['title'], array(&$this, 'show'), $page, $this->_meta_box['context'], $this->_meta_box['priority']);
}
}
// Callback function to show fields in meta box
function show() {
global $post;
// Use nonce for verification
echo '<input type="hidden" name="wp_meta_box_nonce" value="', wp_create_nonce(basename(__FILE__)), '" />';
echo '<table class="form-table">';
foreach ($this->_meta_box['fields'] as $field) {
// get current post meta data
$meta = get_post_meta($post->ID, $field['id'], true);
echo '<tr>',
'<th style="width:20%"><label for="', $field['id'], '">', $field['name'], '</label></th>',
'<td>';
switch ($field['type']) {
case 'text':
echo '<input type="text" name="', $field['id'], '" id="', $field['id'], '" value="', $meta ? $meta : $field['std'], '" size="30" style="width:30%" />',
'<br />', $field['desc'];
break;
case 'textarea':
echo '<textarea name="', $field['id'], '" id="', $field['id'], '" cols="60" rows="5" style="width:97%">', $meta ? $meta : $field['std'], '</textarea>',
'<br />', $field['desc'];
break;
case 'select':
echo '<select name="', $field['id'], '" id="', $field['id'], '">';
foreach ($field['options'] as $option) {
echo '<option value="', $option['value'], '"', $meta == $option['value'] ? ' selected="selected"' : '', '>', $option['name'], '</option>';
}
echo '</select>';
break;
case 'radio':
foreach ($field['options'] as $option) {
echo '<input type="radio" name="', $field['id'], '" value="', $option['value'], '"', $meta == $option['value'] ? ' checked="checked"' : '', ' />', $option['name'];
}
break;
case 'checkbox':
echo '<input type="checkbox" name="', $field['id'], '" id="', $field['id'], '"', $meta ? ' checked="checked"' : '', ' />';
break;
case 'file':
echo $meta ? "$meta<br />" : '', '<input type="file" name="', $field['id'], '" id="', $field['id'], '" />',
'<br />', $field['desc'];
break;
case 'wysiwyg':
echo '<textarea name="', $field['id'], '" id="', $field['id'], '" class="theEditor" cols="60" rows="4" style="width:97%">', $meta ? $meta : $field['std'], '</textarea>',
'<br />', $field['desc'];
break;
case 'champselect':
echo '<select name="', $field['id'], '_team1_1" id="', $field['id'], '_team1_1">';
foreach ($field['options'] as $option1) {
echo '<option value="', $option1['value'], '_team1_1"', $meta == $option1['value'] ? ' selected="selected"' : '', '>', $option1['name'], '</option>';
}
echo '</select>';
echo '<select name="', $field['id'], '_team1_2" id="', $field['id'], '_team1_2">';
foreach ($field['options'] as $option2)Q {
echo '<option value="', $option2['value'], '_team1_2"', $meta == $option2['value'] ? ' selected="selected"' : '', '>', $option2['name'], '</option>';
}
echo '</select>';
echo '<select name="', $field['id'], '_team1_3" id="', $field['id'], '_team1_3">';
foreach ($field['options'] as $option3) {
echo '<option value="', $option3['value'], '_team1_3"', $meta == $option3['value'] ? ' selected="selected"' : '', '>', $option3['name'], '</option>';
}
echo '</select>';
echo '<select name="', $field['id'], '_team1_4" id="', $field['id'], '_team1_4">';
foreach ($field['options'] as $option4) {
echo '<option value="', $option4['value'], '_team1_4"', $meta == $option4['value'] ? ' selected="selected"' : '', '>', $option4['name'], '</option>';
}
echo '</select>';
echo '<select name="', $field['id'], '_team1_5" id="', $field['id'], '_team1_5">';
foreach ($field['options'] as $option5) {
echo '<option value="', $option5['value'], '_team1_5"', $meta == $option5['value'] ? ' selected="selected"' : '', '>', $option5['name'], '</option>';
}
echo '</select>';
break;
case 'champbans':
echo '<select name="', $field['id'], '_team1ban_1" id="', $field['id'], '_team1ban_1">';
foreach ($field['options'] as $option1) {
echo '<option value="', $option1['value'], '_team1ban_1"', $meta == $option1['value'] ? ' selected="selected"' : '', '>', $option1['name'], '</option>';
}
echo '</select>';
echo '<select name="', $field['id'], '_team1ban_2" id="', $field['id'], '_team1ban_2">';
foreach ($field['options'] as $option2) {
echo '<option value="', $option2['value'], '_team1ban_2"', $meta == $option2['value'] ? ' selected="selected"' : '', '>', $option2['name'], '</option>';
}
echo '</select>';
echo '<select name="', $field['id'], '_team1_3" id="', $field['id'], '_team1_3">';
foreach ($field['options'] as $option3) {
echo '<option value="', $option3['value'], '_team1ban_3"', $meta == $option3['value'] ? ' selected="selected"' : '', '>', $option3['name'], '</option>';
}
echo '</select>';
break;
case 'image':
?>
<h2>Images attached to this post</h2>
<div id="uploaded">
<?php
$args = array(
'post_type' => 'attachment',
'post_parent' => $post->ID,
'numberposts' => -1,
'post_status' => NULL
);
$attachs = get_posts($args);
if (!empty($attachs)) {
foreach ($attachs as $att) {
?>
<div class="single-att" style="margin: 0 10px 10px 0; float: left;">
<?php echo wp_get_attachment_image($att->ID, 'thumbnail'); ?>
<br />
<a class="deletefile" href="#" rel="<?php echo $att->ID ?>-<?php echo $post_id ?> "title="Delete this file">Delete Image</a>
</div>
<?php
}
} else {
echo 'No Images uploaded yet';
}
?>
</div>
<h2>Upload new Images</h2>
<div id="newimages">
<p><input type="file" name="<?php echo $field['id'] ?>[]" id="" /></p>
<a class="add" href="#">Add More Images</a>
</div>
<?php
break;
}
echo '<td>',
'</tr>';
}
echo '</table>';
}
// Save data from meta box
function save($post_id) {
// verify nonce
if (!wp_verify_nonce($_POST['wp_meta_box_nonce'], basename(__FILE__))) {
return $post_id;
}
// check autosave
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return $post_id;
}
// check permissions
if ('page' == $_POST['post_type']) {
if (!current_user_can('edit_page', $post_id)) {
return $post_id;
}
} elseif (!current_user_can('edit_post', $post_id)) {
return $post_id;
}
foreach ($this->_meta_box['fields'] as $field) {
$name = $field['id'];
$old = get_post_meta($post_id, $name, true);
$new = $_POST[$field['id']];
/*
// changed to using WP gallery
if ($field['type'] == 'file' || $field['type'] == 'image') {
$file = wp_handle_upload($_FILES[$name], array('test_form' => false));
$new = $file['url'];
}
*/
if ($field['type'] == 'file' || $field['type'] == 'image') {
if (!empty($_FILES[$name])) {
$this->fix_file_array($_FILES[$name]);
foreach ($_FILES[$name] as $position => $fileitem) {
$file = wp_handle_upload($fileitem, array('test_form' => false));
$filename = $file['url'];
if (!empty($filename)) {
$wp_filetype = wp_check_filetype(basename($filename), null);
$attachment = array(
'post_mime_type' => $wp_filetype['type'],
'post_title' => preg_replace('/\.[^.]+$/', '', basename($filename)),
'post_status' => 'inherit'
);
$attach_id = wp_insert_attachment($attachment, $filename, $post_id);
// you must first include the image.php file
// for the function wp_generate_attachment_metadata() to work
require_once(ABSPATH . 'wp-admin/includes/image.php');
$attach_data = wp_generate_attachment_metadata($attach_id, $filename);
wp_update_attachment_metadata($attach_id, $attach_data);
}
}
}
}
if ($field['type'] == 'wysiwyg') {
$new = wpautop($new);
}
if ($field['type'] == 'textarea') {
$new = htmlspecialchars($new);
}
// validate meta value
if (isset($field['validate_func'])) {
$ok = call_user_func(array('RW_Meta_Box_Validate', $field['validate_func']), $new);
if ($ok === false) { // pass away when meta value is invalid
continue;
}
}
if ($new && $new != $old) {
update_post_meta($post_id, $name, $new);
} elseif ('' == $new && $old && $field['type'] != 'file' && $field['type'] != 'image') {
delete_post_meta($post_id, $name, $old);
}
}
}
/**
* Fixes the odd indexing of multiple file uploads from the format:
*
* $_FILES['field']['key']['index']
*
* To the more standard and appropriate:
*
* $_FILES['field']['index']['key']
*
* @param array $files
* @author Corey Ballou
* @link http://www.jqueryin.com
*/
function fix_file_array(&$files) {
$names = array(
'name' => 1,
'type' => 1,
'tmp_name' => 1,
'error' => 1,
'size' => 1
);
foreach ($files as $key => $part) {
// only deal with valid keys and multiple files
$key = (string) $key;
if (isset($names[$key]) && is_array($part)) {
foreach ($part as $position => $value) {
$files[$position][$key] = $value;
}
// remove old key reference
unset($files[$key]);
}
}
}
}
?>